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kvm loop can t delete device dev loop0 device or resource busy

Discussion in 'CloudLinux' started by holinhot, Jan 9, 2014.

  1. holinhot

    holinhot Registered

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    Hello,all

    I'm using cloudlinux and have installed cpanel for KVM vps,but the rebooting system display "loop can t delete device dev loop0 device or resource busy"

    as shown in the figure:


    my disk:
    Code:
    root@clcla1923 [~]# df -h
    Filesystem                         Size  Used Avail Use% Mounted on
    /dev/mapper/vg_clcla1923-LogVol02   32G  4.6G   26G  16% /
    tmpfs                              1.9G     0  1.9G   0% /dev/shm
    /dev/vda1                          194M   49M  135M  27% /boot
    /dev/mapper/vg_clcla1923-LogVol01  158G  592M  149G   1% /home
    /usr/tmpDSK                        485M   11M  449M   3% /tmp
    root@clcla1923 [~]# fdisk -l
    
    Disk /dev/vda: 214.7 GB, 214748364800 bytes
    16 heads, 63 sectors/track, 416101 cylinders
    Units = cylinders of 1008 * 512 = 516096 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x00065368
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/vda1   *           3         409      204800   83  Linux
    Partition 1 does not end on cylinder boundary.
    /dev/vda2             409      416102   209509376   8e  Linux LVM
    Partition 2 does not end on cylinder boundary.
    
    Disk /dev/mapper/vg_clcla1923-LogVol00: 8589 MB, 8589934592 bytes
    255 heads, 63 sectors/track, 1044 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x00000000
    
    
    Disk /dev/mapper/vg_clcla1923-LogVol02: 34.1 GB, 34145828864 bytes
    255 heads, 63 sectors/track, 4151 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x00000000
    
    
    Disk /dev/mapper/vg_clcla1923-LogVol01: 171.8 GB, 171798691840 bytes
    255 heads, 63 sectors/track, 20886 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x00000000
    
    root@clcla1923 [~]#
    and
    Code:
    root@clcla1923 [~]# df -h
    Filesystem                         Size  Used Avail Use% Mounted on
    /dev/mapper/vg_clcla1923-LogVol02   32G  4.6G   26G  16% /
    tmpfs                              1.9G     0  1.9G   0% /dev/shm
    /dev/vda1                          194M   49M  135M  27% /boot
    /dev/mapper/vg_clcla1923-LogVol01  158G  592M  149G   1% /home
    /usr/tmpDSK                        485M   11M  449M   3% /tmp
    root@clcla1923 [~]#
    fstab
    Code:
    root@clcla1923 [~]# cat /etc/fstab
    
    #
    # /etc/fstab
    # Created by anaconda on Wed Jan  8 06:01:57 2014
    #
    # Accessible filesystems, by reference, are maintained under '/dev/disk'
    # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
    #
    /dev/mapper/vg_clcla1923-LogVol02 /                       ext4    defaults        1 1
    UUID=4816b084-1263-46c3-81d1-0c08c00bf3b3 /boot                   ext4    defaults        1 2
    /dev/mapper/vg_clcla1923-LogVol01 /home                   ext4    defaults        1 2
    /dev/mapper/vg_clcla1923-LogVol00 swap                    swap    defaults        0 0
    tmpfs                   /dev/shm                tmpfs   defaults        0 0
    devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
    sysfs                   /sys                    sysfs   defaults        0 0
    proc                    /proc                   proc    defaults        0 0
    /usr/tmpDSK             /tmp                    ext3    defaults,noauto        0 0
    root@clcla1923 [~]#
    as shown in the figure:


    Thanks Very much
     

    Attached Files:

  2. cPanelPeter

    cPanelPeter Technical Analyst III
    Staff Member

    Joined:
    Sep 23, 2013
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    Twitter:
    Hello,

    Are you certain the device isn't just busy? Have you checked with the fuser command?

    Code:
    fuser -c /dev/loop0
    fuser -d /dev/loop0
    fuser -f /dev/loop0
    
    If you get a PID back on it, try to stop whatever process it is first.
     
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